Question

1. The typical ratio between the bases in DNA:

a. A = T

b. C = G

c. A + C = G + T

d. All of the above are correct

2. Which of the following is TRUE of sphingolipids?

a. They always contain glycerol and fatty acids

b. They do not contain glycerol.

c. They may contain up to three fatty acids.

d. They may be charged, but are never amphipathic.

3. Linoleic acid:

a. has two double bonds, one between carbos 8 and 9, one between carbons 11 and 12

b. has shortened by 2 carbons, with a double bond bridging the original carbons 9 and 12

c. is an omega-3 fatty acid

d. is labeled 18:2(? 9,12):

4.What is TRUE about double bonds in fatty acids:

Select one:

a. most organisms produce about equal proportion of cis- and trans- fatty acids

b. trans-fatty acids have a lower melting point than cis-fatty acids

c. cis-fatty acids pack more densly in a biological membrane

d. trans fatty acids are mostly associated with industrial processes

5.

What is TRUE about double bonds in fatty acids:

Select one:

a. most organisms produce about equal proportion of cis- and trans- fatty acids

b. trans-fatty acids have a lower melting point than cis-fatty acids

c. cis-fatty acids pack more densly in a biological membrane

d. trans fatty acids are mostly associated with industrial processes

Answer 1

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